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Fencer Vulns
low 2.1

CVE-2005-2553 json

The find_target function in ptrace32.c in the Linux kernel 2.4.x before 2.4.29 does not properly handle a NULL return value from another fu…

published 2005-08-12 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-2554

cvss
2.1
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 46%
public exploits
0
none known

Summary

The find_target function in ptrace32.c in the Linux kernel 2.4.x before 2.4.29 does not properly handle a NULL return value from another function, which allows local users to cause a denial of service (kernel crash/oops) by running a 32-bit ltrace program with the -i option on a 64-bit executable program.

Patch / fix

  • kernel RHEL 3 2.4.21-37.EL
  • kernel-smp RHEL 3 2.4.21-37.EL
  • kernel-BOOT RHEL 3 2.4.21-37.EL
  • kernel-source RHEL 3 2.4.21-37.EL
  • kernel-hugemem RHEL 3 2.4.21-37.EL
  • kernel-unsupported RHEL 3 2.4.21-37.EL
  • kernel-smp-unsupported RHEL 3 2.4.21-37.EL
  • kernel-hugemem-unsupported RHEL 3 2.4.21-37.EL

red hat advisories RHSA-2005:663

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2005-2553 updated

security flaw

  • Red Hat Desktop version 3 kernel 2.4.21-37.EL, kernel-smp 2.4.21-37.EL, kernel-BOOT 2.4.21-37.EL, kernel-source 2.4.21-37.EL, kernel-hugemem 2.4.21-37.EL, kernel-unsupported 2.4.21-37.EL, +2 more Red Hat Enterprise Linux AS version 3 kernel 2.4.21-37.EL, kernel-smp 2.4.21-37.EL, kernel-BOOT 2.4.21-37.EL, kernel-source 2.4.21-37.EL, kernel-hugemem 2.4.21-37.EL, kernel-unsupported 2.4.21-37.EL, +2 more Red Hat Enterprise Linux ES version 3 kernel 2.4.21-37.EL, kernel-smp 2.4.21-37.EL, kernel-BOOT 2.4.21-37.EL, kernel-source 2.4.21-37.EL, kernel-hugemem 2.4.21-37.EL, kernel-unsupported 2.4.21-37.EL, +2 more Red Hat Enterprise Linux WS version 3 kernel 2.4.21-37.EL, kernel-smp 2.4.21-37.EL, kernel-BOOT 2.4.21-37.EL, kernel-source 2.4.21-37.EL, kernel-hugemem 2.4.21-37.EL, kernel-unsupported 2.4.21-37.EL, +2 more
    fixed: vendor fix RHSA-2005:663

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • lkml.org http://lkml.org/lkml/2005/1/5/245 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P

Classification

Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.